I am seeing these pink spots on my dog's nose since yesterday evening(it has always been completely black)and it's increasing. Is this something I should be concerned about?

Hi Sir.. Ringworm or other fungal diseases could cause patches like this, or those associated with hypothyroidism or some unusual autoimmune condition that manifest at the mucocutaneous junction..or it could be snow nose, that occurs in the winter months..It requires examination..Kindly scheduled an appointment with vet for home visit..